MeteringHandbookComplete_040809

Metering ElectricService Handbook

April 8, 2009Metering Department

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TABLE OF CONTENTS

GULF POWER COMPANY LOCAL OFFICESAND OPERATING HEADQUARTERS

Service Applications - Customer Service Center ................................................................... 1Pensacola District ................................................................................................................... 1Fort Walton District................................................................................................................ 1Panama City District............................................................................................................... 1Gulf Power Metering Services Department ........................................................................... 1

INTRODUCTION ...................................................................................................................... 2DEFINITIONS............................................................................................................................ 2GENERAL INFORMATION

A. Alterations and Additions.............................................................................................. 5B. Application for Service.................................................................................................. 5C. Availability and Classification of Service ..................................................................... 6D. Number of Meters.......................................................................................................... 6E. Individual and Master Meters........................................................................................ 6

HARDWARE MOUNTING & ELECTRICAL CONNECTION REQUIREMENTSMounting and Labeling of Meter Sockets and Metering Cabinets........................................ 7

INSPECTIONS .......................................................................................................................... 8SERVICE LOCATIONS

A. General ......................................................................................................................... 8B. Indoors .......................................................................................................................... 9C. Multi-Occupancy Buildings ......................................................................................... 10

GENERAL REQUIREMENTS FOR SERVICES LESS THAN 600 VOLTSA. General ........................................................................................................................10B. Multi-Family Dwellings ...............................................................................................11C. Meter Sockets ...............................................................................................................12D. Metering Installations for Mobile Homes or Mobile Home Parks...............................13

TRANSFORMER VAULTS.....................................................................................................13GROUNDING............................................................................................................................13METER TAMPERING AND SEALS .....................................................................................14METERING INSTALLATIONS FOR SERVICES LESS THAN 600 VOLTS

A. General ........................................................................................................................14B. Installation of Self-contained Watt-hour meters ..........................................................15C. Installation of Instrument-transformer Watt-hour meters ............................................17

REQUIREMENTS FOR SERVICES GREATER THAN 600 VOLTS ...............................18CUSTOMER OWNED LIGHTNING ARRESTERS ...........................................................18

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SERVICE INSTALLATION DRAWINGSTEMPORARY SERVICES

TEMPORARY OVERHEAD SERVICE INSTALLATION ............................................ 21TEMPORARY UNDERGROUND SEVICE INSTALLATION...................................... 23

MOBILE HOME SERVICESTYPICAL OVERHEAD SERVICE TO MOBILE HOME .............................................. 25TYPICAL UNDERGROUND INSTALLATIONS FOR MOBILE HOMES .................. 27

OVERHEAD SERVICE INSTALLATIONSTYPICAL RESIDENTIAL OVERHEAD INSTALLATION.......................................... 29

METER SOCKET WIRING DIAGRAMS OVERHEADSINGLE-PHASE TWO-WIRE 120V SERVICE ............................................................ 31SINGLE-PHASE THREE-WIRE SELF-CONTAINED METER ................................... 33SINGLE-PHASE SERVICE USING INSTRUMENT TRANSFORMERS ................... 36

METER SOCKET WIRING DIAGRAMS UNDERGROUNDSINGLE-PHASE THREE-WIRE SELF-CONTAINED METER ................................... 38SINGLE-PHASE SERVICE USING INSTRUMENT TRANSFORMERS ................... 41

MULTI-FAMILY HOUSINGDUPLEX INSTALLATIONS OVERHEAD AND UNDERGROUND ......................... 43MULTI-FAMILY HOUSING UP TO SIX UNITS.......................................................... 45MULTI-FAMILY INSTALLATION WITH MORE THAN SIX POSITIONS .............. 47

COMMERCIAL INSTALLATIONS SINGLE PHASE400 AMPS AND BELOW: SELF-CONTAINED METERS ......................................... 49ABOVE 400 AMPS: INSTRUMENT TRANSFORMER METERS ............................. 52

COMMERCIAL INSTALLATIONS THREE PHASE400 AMPS AND BELOW: SELF-CONTAINED METER............................................ 54POWER LEG OR STINGER LOCATION ..................................................................... 57ABOVE 400 AMPS: INSTRUMENT TRANSFORMERS IN PADMOUNT ............... 58MULTIPLE CUSTOMERS FROM A COMMON SERVICE LATERAL .................... 60MULTIPLE CUSTOMERS FROM A SINGLE PADMOUNT TRANSFORMER ....... 62

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GULF POWER COMPANY LOCAL OFFICES ANDOPERATING HEADQUARTERS

Customer Service Center1-800-225-5797 - Company Wide Information

Pensacola DistrictArea Address Phone Number

North Pensacola 9220 Pine Forest RoadPensacola, FL 32534

850-429-2600

Central Pensacola 9220 Pine Forest RoadPensacola, FL 32534

850-429-2600

South PensacolaPerdido Key

2200 West Chase StreetPensacola, FL 32520

850-505-5567

Milton 5120 Whiting Field BlvdMilton, FL 32570

850-429-2420

Gulf Breeze 3090 HWY 98 EastGulf Breeze, FL 32561

850-505-5482

Fort Walton DistrictArea Address Phone Number

Crestview 1655 South Ferdon BlvdCrestview, FL 32536

850-689-4628

Destin 2700 Emerald Coast PkwyDestin, FL 32541

850-244-4738

Fort Walton Beach 140 Hollywood Blvd SWFort Walton Beach , FL 32549

850-244-4728

DeFuniak Springs 9 Circle DriveDeFuniak Springs, FL 32433

850-892-2412

Panama City DistrictArea Address Phone Number

Panama City 1230 East 15TH StreetPanama City , FL 32405

850-872-3212

Panama City Beach 12425 Middle Beach RoadPanama City , FL 32407

850-872-3289

Chipley 1195 Jackson AvenueChipley, Fl 32428

850-638-0270

Gulf Power Company Metering Services DepartmentMetering Services 9220 Pine Forest Road

Pensacola, FL 32534850-429-2742

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INTRODUCTION

This booklet is issued primarily as a convenient reference for customers, architects, engineers, andcontractors planning or constructing buildings or installing, repairing, or renewing apparatus or equipmentto be connected to the Companys distribution system. Any reference herein to the Company will implyGulf Power Company unless otherwise stated.

The practices discussed have been derived from research, experience, and technical consideration. As suchthey are supplementary to and do not intentionally conflict with the National Electrical Code or stateand municipal laws and ordinances that may be in force within the cities, towns, or communities inwhich the Company furnishes electric service. If any conflict exists, the Code, law, or ordinance shallcontrol.

It is always necessary to refer to and comply with applicable codes, statutes, utility commission rules, andlocal ordinances. The information contained herein is general and does not include every detail or everylawful requirement.

The Company desires to serve its customers promptly and satisfactorily. It will endeavor to cooperate withcontractors and customers to the fullest extent in completing service connections with as little delay andinconvenience as possible and will gladly give special attention to any particularly difficult situationconfronting a customer.

The Company will be pleased to confer with those desiring information concerning rates, services, etc.,upon request.

DEFINITIONS

Ampere Rating - The maximum allowable current that can safely pass through a device.

Approved - Acceptable to a qualified Gulf Power Company employee.

Class of Service - The voltage rating and the number of phases for a particular service.

Company - Gulf Power Company.

Conduit - A tubing or duct in which electric wires or cables are enclosed.

Current Transformer (CT) - A device which reduces the load current by a known ratio for meteringpurposes.

CT Enclosure (Instrument Transformer Enclosure) - A metal cabinet which houses instrumenttransformers.

CT Socket (Instrument Transformer Rated Socket) - A meter socket that is used only with instrumenttransformers.

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Customer - The corporation, municipality, governmental agency, association, partnership, or individualusing or planning to use electric service supplied by the Company; or the architect, engineer, or electricalcontractor acting as the customers agent.

Diversified Demand - The maximum anticipated load (kW) calculated by the Company based upon thecustomers usage patterns and operation.

Electric Service - Electrical energy that is made available to the customer at the point of delivery.

Energy - The measure of work done. The electrical unit of energy is the kilowatt-hour, which is 1,000 watt-hours.

Final Grade - Ground level after all construction and before landscaping procedures have been completed.

Florida Meter Group (FMG) An organization composed of electrical utilities which operate in the Stateof Florida, dedicated to standardization of metering practices and metering equipment

Grounded Conductor - A system or circuit conductor that is intentionally grounded.1

Grounding Conductor, Equipment - The conductive path installed to connect normally non-current-carrying metal parts of equipment together and to the system grounded conductor or to the groundingelectrode conductor or both.1

Grounding Electrode Conductor - A conductor used to connect the system grounded conductor or theequipment to a grounding electrode or to a point on the grounding electrode system.1

Instrument Transformer - A current transformer or potential transformer used in metering.

Instrument Transformer Enclosure (CT Enclosure or CT Cabinet) - A metal cabinet which housesinstrument transformers.

Listed Equipment- Equipment or materials included in a list published by an organization acceptable to theauthority having jurisdiction and concerned with product evaluation, such as Underwriters Laboratory(U.L.)1

Meter - A device that measures the amount of power and/or energy delivered to a customer or receivedfrom a customer.

Meter Socket - A weatherproof receptacle used for mounting a socket-type meter.

National Electrical Code (NEC) - ANSI/NFPA 70. The code which governs the installation of electricconductors and equipment within or on public or private buildings or other structures, and outdoor locations.

National Electrical Safety Code (NESC) - ANSI C2. The code which governs the installation, operation,and maintenance of electric supply and communication lines, equipment, and associated work practicesemployed by utilities.

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Neutral conductor The conductor that is connected to the neutral point of a system and that is intended tocarry current under normal conditions. 1 The neutral conductor normally carries the current resulting fromthe unbalance of the currents on other conductors.

Point of Delivery - The point designated by the Company at which the customers conductors are connectedto the Companys conductors.

Potential Transformer (PT) - A device which reduces the service voltage by a known ratio for metering.

Power (Demand) - The average rate of energy used over a period of time. The amount of time over whichthe demand is measured is called the demand interval. Gulf Power uses a 15minute demand interval forbilling purposes. The unit of measure for power is the kilowatt (kW), which is 1000 watts.

Qualified Employee - A Gulf Power Company employee familiar with Company safety rules andregulations and the construction, application, and operation of the equipment involved.

Raceway - An enclosed channel designed expressly for holding wires, cables, or bus bars. 1

Readily Accessible - Capable of being reached quickly for operation, renewal, or inspections withoutrequiring those to whom ready access is requisite to climb over or remove obstacles or to resort to portableladders, and so forth. 1.

Service - The conductors and equipment for delivering electrical energy from the serving utility to thewiring system of the premises served. 1

Service Drop - The overhead service conductors that extend from the Companys last pole or aerial supportto and including the splices, if any, connecting the customers service entrance conductors at the building orother structure. 1

Service Entrance - The customers conductors, conduit, and other associated equipment which extendsfrom the point of delivery to the service equipment.

Service Entrance Conductors, Overhead System - The service conductors between the terminals of theservice equipment and a point usually outside the building, clear of building walls, where they are joined bytap or splice to the service drop. 1

Service Entrance Conductors, Underground System - The service conductors between the terminals ofthe service equipment and the point of connection to the service lateral. 1

Service Equipment - The necessary equipment, usually consisting of a circuit breaker(s) or switch(es) andfuses(s), and their accessories, connected to the load end of service conductors to a building or otherstructure, and intended to constitute the main control and cutoff of the supply. 1

Service Lateral - The underground service conductors, including any risers at a pole or other structure orfrom transformers, between the Companys distribution system and the point of delivery.1

Special Permission - The written consent of the Company.

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Transocket A pre-fabricated metering assembly containing current transformers and a pre-wired metersocket. A transocket has conductor terminals similar to a standard meter socket and is installed in the sameway as a self-contained meter socket. It eliminates the need for the electrician to install the currenttransformers and then pull the service entrance conductors through the CTs.

Weatherproof - So constructed or protected that exposure to weather will not interfere with successfuloperation. 1

1 The definitions noted are copied or adapted from NFPA 70, National Electrical Code, 2008 Edition,published by the National Fire Protection Association

GENERAL INFORMATION

Scope:

The information contained in this booklet refers primarily to metering requirements at secondarydistribution voltages (under 600 volts) for light and power installations. Metering requirements forinstallations requiring higher distribution voltages are subject to special negotiations between the customerand the Company. The Company is available to advise customers concerning the use of electricalequipment or situations not covered in this book.

A. Alterations and Additions:

When the Company connects a customers installations to its supply lines, arrangements are made formeters, transformers, and other equipment to fit the installation as it is at that time. For maximum safetyand billing accuracy, it is essential that the customer or contractor give notice to the Company beforemaking any changes which will significantly increase or decrease the electrical load, change conductorclearances, or enclose or restrict access to Company facilities. Notice on any of these matters should begiven to the local engineering office of the Company at the phone numbers listed on Page 1 of thishandbook.

B. Application For Service:

The Company maintains local offices strategically placed throughout its service area as well as a company-wide customer service center. Requests for new service should be directed to the Customer Service Centerby calling 1-800-225-5797, or in the Pensacola area, local phone number 969-3111.

The customer shall provide, free of expense to the Company, suitable location(s) and space as determined bythe Company for the transformer(s), meters, and other equipment owned by the Company which arenecessary to supply service.

An application for service will be considered permission to cross the customers property and install anyequipment or maintain any equipment which may be necessary to provide electric service.

To avoid unnecessary delays, applications for service should be made as far in advance of required servicedate as possible. Specific instructions for locating the service address will help to assure prompt service.

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C. Availability and Classification of Service:

The customer should consult the Company well in advance of the date that service is required in order todetermine what type of service is available in a particular location. The Company will provide the customerwith one of the following standard voltages: 120/240, 120/208, or 277/480, with a frequency of 60 Hertz.A qualified company employee will determine the voltage, phase, etc., of a particular service since theavailability may vary between different locations.

D. Number of Meters:

Only one watt-hour meter will be installed per customer per class of service. An exception will be made ifthe characteristics of the customers load or billing rate require the Company to utilize multiple meters.

On installations comprising more than six meters, a sealable main disconnect or main breaker, of a typeacceptable to the Company, shall be provided by the customer as required by the National Electrical Code.The customer shall always provide and maintain any main breakers or disconnects.

E. Individual and Master Meters:

The Rate Schedules of the Company contemplate the service will be supplied to each separate premise asone Customer. Where a Customer, for any reason, requires the installation of more than one meter by theCompany each meter will be billed as a separate Customer. The electricity used by the same person, firm,or corporation at different premises will not be combined and billed as one Customer.

Individual electric metering by the Company shall be required for each separate occupancy unit of newcommercial establishments, residential buildings, condominiums, cooperatives, marinas, and trailer, mobilehome, and recreational vehicle parks. This requirement shall apply whether or not the facility is engaged ina time-sharing plan. Individual electric meters shall not, however, be required:

1. In those portions of a commercial establishment where the floor space dimensions or physicalconfiguration of the units are subject to alteration, as evidenced by non-structural elementpartition walls, unless the Company determines that adequate provisions can be made to modifythe metering to accurately reflect such alterations;

2. For electricity used in central heating, ventilating, and air conditioning systems, or electric backup service to storage heating and cooling systems;

3. For electricity used in specialized-use housing accommodations such as hospitals, nursinghomes, living facilities located on the same premises as, and operated in conjunction with, anursing home or other health care facility providing at least the same level and types of servicesas a nursing home, convalescent homes, facilities certificated under Chapter 651, FloridaStatutes, college dormitories, convents, sorority houses, fraternity houses, motels, hotels, andsimilar facilities.

4. For separate, specially-designated areas for overnight occupancy at trailer, mobile home andrecreational vehicle parks where permanent residency is not established and for marinas whereliving aboard is prohibited by ordinance, deed restriction, or other permanent means.

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Where individual metering is not required and master metering is used in lieu thereof, reasonableapportionment methods, including sub-metering, may be used by the customer of record or the owner ofsuch facility solely for the purpose of allocating the cost of the electricity billed by the utility. Any fees orcharges collected by a customer of record for electricity billed to the customer's account by the utility,whether based on the use of sub-metering or any other allocation method, shall be determined in a mannerwhich reimburses the customer of record for no more than the customer's actual cost of electricity.

HARDWARE MOUNTING & LABELING REQUIREMENTS

Mounting and Labeling of Meter Sockets and Metering Cabinets:

Metering equipment shall be surface mounted. Siding, stucco, brickwork, etc., shall not be installed aroundthe metering equipment. Metering equipment shall be installed on top of siding, stucco, brickwork, etc.

To insure safety, accuracy, and reliability of service it is necessary that meter sockets and metering cabinetsbe securely installed in a level and plumb position at a height specified in the installation drawings.

Meter sockets, metering cabinets, and conduit straps shall be installed with the following:

Lead anchors or double helix concrete screws shall be used with brick or solid concrete surfaces.

Toggle bolts shall be used with other masonry siding.

Wood screws shall be used with solid wood surfaces.

All mounting hardware shall be minimum #12 (1/4) corrosion resistant screws.

A minimum of 4 fasteners shall be used to install any socket or cabinet unless specifically statedotherwise.

Where the exterior wall is other than brick or concrete blocks, the wall should be framed in a manner toprovide a solid mounting surface for the metering equipment.

To avoid delays in providing service to multi-unit buildings (apartments, condominiums, or commercial),both the meter socket and the building unit served shall be clearly labeled before meters are installed. Eachmeter socket position must be labeled on the outside surface with letters and/or numbers at least one inch inheight of contrasting color, indicating the apartment/unit number. Labeling shall not be done with pencils,pens or ink-based markers.

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INSPECTIONS

The wiring and appliances of the customer should be installed and maintained in accordance with therequirements of the National Electrical Code and such state, municipal, and county inspection requirementsas may be in force at the time such installation is made.

Where inspection service is required, the customer shall have the wiring inspected and approved by anauthorized electrical inspector and have the installation released for connection before the Company makesconnection to its system. The Company will not inspect any wiring or equipment installed by the customer,but may refuse or terminate service if the Company actually observes any condition on the customersinstallation or equipment with the Company, in its sole judgment, regards as hazardous or of such characterthat satisfactory service cannot be given.

Where no public inspection authorities have jurisdiction, the Company may require written notice from thewiring electrician or customer that the installation is ready for electric service. The Company will notinspect any wiring or equipment installed by the customer but may refuse or terminate service if theCompany actually observes any condition on the customers installation or equipment which the Company,in its sole judgment, regards as hazardous or of such character that satisfactory service cannot be given.

SERVICE LOCATIONS

A. General:

The preferred location for ALL metering equipment is outdoors. For indoor installations, special permissionmust be obtained from the metering engineer.

Meters must be placed in locations readily accessible to authorized Company representatives. Refer toReadily Accessible definition on page 4.

All posts and timber supports on which meters are to be mounted must be pressure treated with preservativewith 0.4 lbs./ft3 minimum concentration.

Meter sockets shall be placed so that the centerline of the meter will be not more than five and one-half feetnor less than four and one-half feet above finished grade level. An exception is made for Meter Centers; seepages 46 and 48.

Safety dictates metering equipment shall be located so Company personnel are provided level, unobstructedworking space. This working space around metering or other service equipment should extend a minimumdistance of 3 feet in front and 18 inches to either side of the equipment, and a height of 6 feet, 3 inches fromthe final grade level. See drawing page 30.

In certain coastal locations, local codes or Authorities Having Jurisdiction now require that meters and otherelectrical equipment be located above standard heights to avoid flooding during hurricanes. In theselocations, the customer shall provide a permanent platform for servicing the metering equipment. Suchplatforms must meet the following requirements:

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Meter sockets shall be installed so that the centerline of the meter is not more than 5-1/2 feet and notless than 4-1/2 feet above the surface of the platform.

Instrument transformer enclosures shall be installed so that the bottom of the enclosure is between30 inches and 40 inches above the surface of the platform.

The platform surface shall provide a minimum of three feet of working clearance out from the wall,and 1-1/2 feet of clearance sideways from each side of the metering equipment (i.e., the minimumplatform dimensions shall be three feet by three feet for a meter socket only, and wider if themetering equipment includes an instrument transformer enclosure).

Platforms must be accessible by permanent stairs. All platforms, stairs, railings, construction, and materials shall meet local building and electrical

codes.

Meters shall not be installed within 6 feet of belts or other moving machinery which may endanger thesafety of those doing work on the meter.

Metering equipment shall not be installed in an enclosure within 6 feet of a gas meter(s) unless separated bya partition and separate entrances are provided for access to metering equipment and gas meter(s).

No electric meter shall be installed where it would be necessary to climb over gas or other pipes or HVACequipment to read or service the meter

If necessary to locate metering equipment adjacent to a driveway, walkway, parking lot, or any location thatmight subject the meter to damage, special permission must be obtained from a qualified employee who willhave the option to require the customer to furnish and install protective barriers.

Meters shall be placed in locations that are not subject to vibration or strong magnetic fields. Meteringequipment shall not be mounted on a padmount transformer, except current transformers may be installed ina padmount transformer if only one customer is served by that transformer.

Metering accuracy is of utmost importance to the Company and customers. Therefore, any location aqualified employee determines may cause erroneous registration shall not be allowed.

Typical metering installations are illustrated by drawings in this book. If questions arise, consult a qualifiedemployee.

B. Indoors:

Where special permission is obtained to locate metering equipment indoors, adequate lighting shall beprovided to allow safe installation, maintenance, and testing.

Meters may not be placed in basements where the only entrance is through a trap door, on lattices, in coal orwood bins, in sheds, attics, bedrooms, bathrooms, toilet rooms, restaurant kitchens, stairways, ventilating orelevator shafts, furnace rooms (the latter at the discretion of the Company), in any location where there isless than 6 feet, 3 inches of headroom, or in any place where inconveniences will be caused either to thecustomer or to Company personnel.

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C. Multi-Occupancy Buildings:

All rules for outdoor or indoor meter location still apply.

In multiple occupancy (two or more occupancies) buildings, where several floors, apartments, stores, etc.,are rented separately, meters and other company equipment may be located only where they are accessible atall reasonable hours to the Companys representatives for the purpose of installation, maintenance, removal,reading, inspecting, and testing. Meters shall be located all together at a single outdoor location. If there isnot a suitable outdoor location, then the meters should be grouped together in a common meter room,common hallway, or a suitable location approved by the Company which is accessible to all occupants ofthe building and to the Company at all times for reading, testing, and servicing.

GENERAL REQUIREMENTS FOR SERVICESLESS THAN 600 VOLTS

A. General:

Prior to installation, the customer, architect, or contractor shall ascertain from the Company the point ofdelivery on the customers building and the location of the metering equipment. If the customer has notascertained the location of the point of delivery from the Company, the Company may require the customerto relocate his service entrance equipment at his expense, or the Company may require payment for theadditional cost of service, if any.

If, in order to comply with the requirements of governmental agencies, it becomes necessary for theCompany to make any changes in the location of its equipment or to change the class of service given, thecustomer shall, at his expense, make such changes in his wiring, service entrance, and utilization equipmentas are made necessary by these changes.

Service entrance cable or conduit containing the service entrance conductors or service lateral conductorscarrying unmetered energy shall not be concealed behind a wall. The only exception is for that section of aservice mast which must be installed through the building roof, and that conduit shall not have any joints.

Conduit & Raceways:

To protect the service entrance conductors and prevent moisture from entering the service equipment, allconduit threads and fittings used in the service entrance raceway in outdoor locations are to be maderaintight.

Where conduit is used, fittings with removable covers in the service conduit run are to be avoided ifpossible. If they are necessary, they must not be concealed.

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Conductors:

Wires carrying metered energy are not to be located in the same raceways, troughs, boxes, or conduits withwires carrying unmetered energy. Wires carrying metered energy from two or more different meters shallnot be enclosed in a common conduit, raceway, trough, or box.

The neutral conductor shall always be clearly marked with a white marker at the point of delivery and at themeter location.

When the service is 120/240-volt four-wire three-phase delta, the conductor with nominal voltage of 208volts phase to neutral (high leg, power leg or stinger) shall be clearly marked with a red marker at the pointof delivery and at the meter. For proper metering of four-wire, three-phase delta service, the power leg mustbe in the right-hand or C-phase position in the meter socket. See diagram on page 57.

Lightning arresters or surge protection equipment installed by the customer must be connected on the loadside of the service entrance equipment. Under no circumstance can customer-owned surge protectionequipment be attached to or connected in the meter socket or connected anywhere along the service entrancecable, service entrance conductors, or service drop.

Only one set of service entrance conductors will be allowed on the load side of the meter socket unless theload-side socket connector is specifically designed for multiple conductors.

Service is to be properly grounded as per grounding section on page 13.

B. Multi-Family Dwellings

When more than one metering position is needed, as in apartments or condominiums, multi-position metersockets shall be used. These units must be installed to the following specifications:

Maximum height of the centerline of the highest meter socket 5 feet, 6 inches above final gradelevel; minimum height of the centerline of the lowest meter socket 2 feet, 6 inches above final gradelevel.

If units are installed one above the other, a minimum 2-inch space must be maintained between anytwo units.

Two single-position meter sockets or a two-gang meter socket may be used on two-unit multiple-occupancy buildings as shown on page 44.

Three-unit-or-more multiple-occupancy buildings will require a ganged meter socket or meter centeras required by code or local inspection authority.

Inhibitor of the non-grit-type must be applied to conductors when aluminum conductors are used.

Safety dictates all meter positions shall be properly covered before the meter socket is energized.

The service entrance conductors must be run in sealable metal raceways or the equivalent.

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C. Meter Sockets:

Self-contained:

The Company does not furnish self-contained meter sockets, including ganged meter sockets. Customersmust purchase their own self-contained meter sockets for the following service ratings: 60, 100, 150, 200,320, and 400 amps. All self-contained meter sockets for commercial service, including gang sockets, musthave a manual lever-operated bypass switch, except for single sockets serving only a sign or outdoorlighting. All self-contained meter sockets rated 320 amps, even for residential service, must have a manuallever-operated bypass switch. The only exception to the requirement for a manual lever-operated bypasswill be single sockets serving one of the following types of load:

Signs and billboards (but a bypass shall be required for a sign or billboard with electronic displays ormoving parts)

Outdoor lighting Temporary construction services (but a bypass shall be required for service to any construction office

where computers will be in use) Residential detached garages Well pumps Gate openers Non-commercial agricultural barns Bus stops Boat slips

All 400-amp services, both single-phase and three-phase, shall use 320-amp self-contained sockets. TheCompany no longer allows K-base meter sockets (i.e., bolt-in meters).

Meter sockets purchased by customers shall meet the requirements of Florida Meter Group (FMG)Specification Number 1.0.0, Customer Owned Meter Enclosures for Self-Contained Watthour Meters. TheGulf Power website at https://customerservice.southerncompany.com/Builder/MeteringInfo.aspx has a linkto a copy of this specification. Click on the link called Self-contained Meter Enclosures to see thespecification. Click on the link called Approved Self-contained Meter Enclosures to see a list of metersockets that meet this specification. These sockets should be readily available from most local electricaldistributors.

The FMG list of meter sockets contains sockets with both aluminum enclosures and steel enclosures. TheCompany strongly recommends the use of aluminum enclosures in areas subject to salt spray, i.e., close tothe coast; steel is acceptable in areas away from the coast.

The Florida Public Service Commission has given the authority to Gulf Power Company to accept or rejectself-contained meter sockets. The Company will make the final determination of a devices suitability.

The Customer shall be responsible for all maintenance of meter sockets not furnished by the Company.

Transformer-rated:

The Company will furnish meter sockets for instrument-transformer-rated services, including all servicesrated 600 amps and above. The Company will furnish the current transformers, current-transformer cabinet,

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and instrument-transformer-rated meter socket. The local Company engineering representative will specifythe correct sizes and types of instrument-transformer-rated equipment based on information provided by thecustomer. The Company will furnish the appropriate equipment to the customers electrical contractor whenauthorized by the Companys engineering representative.

D. Metering Installations for Mobile Homes or Mobile Home Parks:

Overhead Installations

All meter sockets shall be mounted as illustrated on page 26, in a manner that allows meters to be insertedand withdrawn without causing movement of the socket.

The mobile home feeder assembly shall terminate at the mobile home service equipment located adjacent tothe mobile home. The feeder assembly shall not terminate in the meter socket.

Underground Installations

Mobile homes served by underground distribution must provide meter pedestals for the connection ofservice laterals and watt-hour meters as illustrated on page 28.

Meter pedestals must be approved by the Metering Services Department before being installed. TheCompany does not assume ownership of meter pedestals and is not responsible for maintenance.

TRANSFORMER VAULTS

When the customer desires to be served from transformers in a customer-owned transformer vault or roomthe customer shall consult the Company for requirements and specifications.

Meters should be readily accessible as defined on page 4 and pages 8, 9, and 10.

GROUNDING

Grounding electrodes and conductors are to be sized in accordance with the National Electrical Code withthe following exceptions. The minimum grounding electrode size shall be an 8-foot-long 5/8-inch-diametergalvanized ground rod. The minimum grounding conductor size shall be determined by the NEC code. Thegrounding conductor shall be terminated on the neutral bus in the meter socket.

Temporary service poles shall be grounded using an 8-foot ground rod as per pages 22 & 24. (Butt-wrapped grounds are not permissible.)

Transformer-rated installations must have a separate grounding provision for the meter socket (and CTcabinet, if used) as shown on pages 37, 42, 53, 59, and 63.

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METER TAMPERING AND SEALS

Unauthorized attempts to divert energy, tamper with metering equipment, or gain unauthorized access toCompany electric facilities can be dangerous. Persons attempting these activities expose themselves to therisk of serious or fatal injury. These activities can also lead to fires or other property damage.

Unauthorized removal, tampering, or damaging a meter or meter enclosure, breaking the seal, or the use ofany method or device which permits the flow of unmetered or unauthorized electricity into a premise is acriminal act. Violators are subject to prosecution under state and local laws.

Any damage caused by tampering with company property will be paid for by those tampering with themetering equipment.

When a customer needs a seal removed in order to inspect the customers system, make repairs, or makemodifications, the customer must call the Company so that company personnel can be dispatched to removethe seal. When the work is complete and the Company has received notice from the inspecting authority, ifneeded, the Company will again dispatch personnel to re-secure the installation.

METERING INSTALLATIONS FOR SERVICESLESS THAN 600 VOLTS

A. General:

The Company will furnish, install, test, and maintain adequate meters to accurately measure the customersuse of electric energy.

Self-contained meter sockets shall be furnished by the customer (See Meter Sockets, page 12) and installedby the customer. The meter socket is the property of the customer and shall be used only for metering.Along with the meter socket, the customer shall furnish and install all service entrance equipment, servicecircuit breakers or switches, branch circuit breakers or fuses and related equipment, together with thenecessary wiring, at the customers expense. The customer shall install and maintain the self-containedmeter socket at the customers expense.

Instrument-transformer-rated metering equipment furnished by the Company to be installed by the customerwill be supplied as complete units in good operating condition. This equipment is the property of theCompany and shall be used only for metering Gulf Power Company customers. If the instrument-transformer-rated meter socket should ever need replacing, the Company will supply a replacement socket tobe installed by the customer. With the exception of this provided metering equipment, the customer willfurnish and install all service entrance equipment, service circuit breakers or switches, branch circuitbreakers or fuses, and related equipment, together with the necessary wiring, at the customers expense.However, the wiring required to connect the instrument transformers to the meter socket will be installed byCompany personnel.

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The customer shall provide suitable mounting space on the customers building wall, pole, or other suitablestructure for the Companys metering at secondary voltages. See page 53 for guidelines in mountinginstrument-transformer metering equipment.

Only service entrance and grounding conductors may be run through the meter socket or meter connectionbox. Company-owned meter sockets or metering cabinets shall not be used as junction boxes for theconnection of branch circuits or feeder conductors or the connection of subsets of service conductorssupplying separate service locations for the same or different premises. Ownership of a Company-ownedmeter socket cannot be transferred to the customer.

Where aluminum conductors are terminated in meter sockets or other company-owned equipment, inhibitorof the non-grit type shall be used in each conductor connector and around the circumference of eachconductor including the grounded conductor (neutral).

B. Installation of Self-contained Watt-hour Meters

Except in those few cases where outdoor locations are not practical, meters shall be installed outdoors on allnew installations and also on existing installations that are to be rearranged in any way that affects theservice-entrance conductors or service circuit breaker or switch. In the cases where outdoor locations arenot practical, the meters may, with the Companys permission, be installed indoors in suitable locations aspreviously outlined. Except as noted in General Information, Section D, p. 6, all self-contained meters shallbe installed ahead of all service equipment. Where manual lever bypass sockets are required below, the onlyexception to the requirement will be single sockets serving one of the following types of load:

Signs and billboards (but a bypass shall be required for a sign or billboard with electronic displays ormoving parts)

Outdoor lighting Temporary construction services (but a bypass shall be required for service to any construction office

where computers will be in use) Residential detached garages Irrigation well pumps Gate openers Non-commercial agricultural barns Bus stops Boat slips

For grouped installations, different sockets may be required than for single meter installations. It will benecessary to consult the Company before such installations are made.

Meter Enclosures:

Where service is 120 volts, 2-wire 100 amps; he customer shall furnish an approved four-terminal meter socket which shall be installed as shown

in the installation drawing on page 32.

Where service is 120/240 volts, 3-wire, 200 amps and under;he customer shall furnish an approved four-terminal class 200 meter socket which shall be installedas shown in the installation drawings on pages 34 and 39. For commercial applications the

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customer shall furnish an approved four-terminal class 200 socket (see page 50) with manuallever bypass to allow meters to be more readily removed for testing and repair without interruptionto the customer.

Where service is 120/240 volts, 3-wire, 320 or 400 amps;The customer shall furnish an approved four-terminal class 320 socket with manual lever bypass,which shall be installed as shown on page 35, 40, and 51.

Where service is 120/208 volts, 3-wire, 200 amps and under (this service is called a network service andis typical of condominiums and apartment houses):

The customer shall furnish an approved class 200 five-terminal socket which shall be installed inaccordance with diagrams for network service on pages 34 and 50. For commercial applicationsthe customer shall furnish an approved five-terminal class 200 socket with manual leverbypass to allow meters to be more readily removed for testing and repair without interruption to thecustomer.

Where service is 120/208 volts, 3-wire 320 or 400 amps:The customer shall furnish an approved class 320 five-terminal socket with manual lever bypass,which shall be installed in accordance with diagrams for network service on pages 34 and 50.

Where service is 120/240 volts 3-phase, 4-wire delta service 200 amps and under:he customer shall furnish a standard seven-terminal class 200 meter socket with manual leverbypass which shall be installed and connected as shown on the installation drawings and connectiondiagram for this type of service. Note that the position of the stinger leg on delta installations mustbe on the far-right-hand side of the meter socket, and the stinger leg must be identified. See pages55 and 57 for drawing details.

Where service is 120/208 or 277/480 volts, 3-phase 4-wire wye service 200 amps and under:he customer shall furnish an approved seven-terminal class 200 meter socket with manual leverbypass which shall be installed and connected as shown on the installation drawing and connectiondiagram for this type of service on page 55. Note: When a self-contained socket is utilized for277/480-volt installations, the customer shall install a disconnecting means immediatelyadjacent to the socket on the load side of the socket. The disconnecting means must have ashort-circuit current rating equal to or greater than the available short-circuit currentspecified for that service by Gulf Power engineering, and an interrupting rating equal to orgreater than the maximum load current.

Where service is 120/240 volts 3-phase, 4-wire delta service 320 or 400 amps:he customer shall furnish an approved seven-terminal class 320 meter socket with manual leverbypass which shall be installed and connected as shown on the installation drawings and connectiondiagram for this type of service. Note that the position of the stinger leg on delta installations mustbe on the far right-hand side of the meter socket, and the stinger leg must be identified. See pages 56and 57 for drawing detail.

Where service is 120/208 or 277/480 volts, 3-phase 4-wire wye service 320 or 400 amps:he customer shall furnish an approved seven-terminal class 320 meter socket with manual leverbypass which shall be installed and connected as shown on the installation drawing and connectiondiagram for this type of service on page 56. Note: When a self-contained socket is utilized for

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277/480-volt installations, the customer shall install a disconnecting means immediatelyadjacent to the socket on the load side of the socket. The disconnecting means must have ashort-circuit current rating equal to or greater than the available short-circuit currentspecified for that service by Gulf Power engineering, and an interrupting rating equal to orgreater than the maximum load current.

C. Installation of Instrument-Transformer Watt-hour Meters:

Instrument transformers will be wired by qualified Company personnel. The Company will designatethe location of the metering equipment. Where appropriate, the Company will furnish to the customer, forinstallation by the contractor, its standard instrument-transformer enclosure. These enclosures are intendedto house only the transformers and meter connections to and from the transformers. In no case shall thecustomers branch circuits or feeders be supplied from the instrument-transformer enclosure. Except forinstallations comprising more than six meters as noted in General Information, Section D, page 6,instrument-transformer enclosures shall be installed ahead of all service equipment.

The Company will also furnish a meter socket, to be installed by the contractor. The customer shall providesufficient space in a location approved by the Company for this meter socket as well as the instrument-transformer enclosure, if one is necessary. See page 53 for drawing.

The customer shall install 1-1/4 conduit between the instrument-transformer enclosure and the metersocket. If it is necessary to locate the meter remote from the instrument transformers, the maximumseparation shall not exceed 30 feet. Where the installation utilizes a padmount transformer, the maximumlateral distance shall not exceed 30 feet. Diagrams on page 59 depict the maximum distances in eachsituation. A maximum of two 90 bends or equivalent is allowed in each run of conduit. All conduit endsshall be reamed to protect the meter control cable. If the conduit is Rigid galvanized or EMT, the conduitends shall be equipped with a bonding bushing. If the instrument transformers are installed in an instrumenttransformer enclosure instead of a padmount, and if the conduit is plastic, a minimum #6 copper bondingconductor shall be run between the meter socket and the instrument transformer enclosure.

It is not acceptable to the Company to place instrument transformers in customer-owned switchgearunless extraordinary circumstances prevail and it is convenient for both the Company and the customer. Ifinstrument transformers must be located in customer-owned switchgear, each installation must becoordinated with and approved by the Company's Metering Services group.

Where instrument transformers are to be located in the customers switchgear, the instrument transformerswill be provided by the Company and they shall be installed by the switchgear manufacturer at thecustomers expense. Such instrument transformers shall be installed ahead of all load and in a separatecompartment with a hinged, sealable door and shall be located such that metering personnel will have clearand unobstructed access to the instrument transformers. Shipping instructions along with a one-linediagram showing the location of the instrument transformers within the switchgear shall be sent to theMetering Services group by the customer. The total length of conduit from the instrument transformers tothe meter socket shall not exceed 50 feet, including all horizontal and vertical distances, and the conduitshall include no more than two 90-degree bends.

On multi-unit buildings where a wiring trough is utilized in serving customers and one or more customersare metered with instrument transformers, the company requires that a disconnecting means be installed on

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the load side of each instrument-transformer cabinet. The disconnecting means shall be readily accessible tothe Company and accept a Company lock. See page 61 for an illustration. The purpose of the disconnectingmeans is to enable the Company to disconnect and reconnect service to these customers without interruptionof service to other customers served from the same trough.

The wiring from the instrument transformer secondary to the meter will be installed by the Company.

When service conductors are installed through current transformers, the customers electrical contractorshall ensure that the polarity marker (white dot and/or the designation H1 on the face of the CT) isoriented to face towards the source end of the service conductors, i.e., the Gulf Power transformer. Asimple way to remember this is the saying, Dot to pot. When parallel service entrance conductors passthrough current transformers, the customers electrical contractor shall ensure that all conductors for a givenphase pass through the same current transformer, and that each phase is in a separate current transformer.Failure to comply with these requirements will result in the contractor having to remove and re-install theservice entrance conductors.

REQUIREMENTS FOR SERVICES GREATERTHAN 600 VOLTS

Service at more than 600 volts, nominal, is subject to special negotiations between the customer and theCompany since the metering and service installations for such service require special engineeringconsideration in practically all cases. It is always advisable to consult the Company well in advance of thetime such service will be required so the customer and Companys design and construction work can beproperly coordinated and equipment made available.

An overhead metering installation at primary voltage may be located at the Companys option either on thecustomers pole or structure or on the Companys pole or structure, but it should be located as close aspractical to the point where the Companys circuits join the customers circuits.

Underground primary metering is normally accomplished by installing a special primary metering cabinet toserve as the junction between the Companys cables and the Customers cables. The primary meteringcabinet can be configured to accept either standard 200-amp load-break elbow connections or 600-amp non-load-break elbow connections.

CUSTOMER OWNEDLIGHTNING ARRESTERS

The Company does not allow the customer to install lightning arresters or any other device in the metersocket or CT cabinet. If a customer wishes to install a lightning arrester, the customer should have itinstalled in the customers service main by a licensed electrician.

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Notes

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SERVICE INSTALLATION DRAWINGS

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TEMPORARY OVERHEAD SERVICE INSTALLATION

A. GENERAL NOTES:

Meter sockets shall be furnished and installed by customer in accordance with Gulf Power andFlorida Meter Group requirements (See GENERAL REQUIREMENTS FOR SERVICES LESSTHAN 600 VOLTS, Section C, Meter Sockets, on page 12).

Pole length determined by service drop clearance requirements.

ClearanceRequirements

12.5 ft. - sidewalk only (restricted traffic)16.5 ft. - residential driveway only16.5 ft. - public driveways, alleys, and roads, construction areas

Pole specifications: 15 minimum circumference pressure treated creosote, CCA, or Penta6 x 6 square treated timber minimum. Shortest acceptable pole is 18 feet, set 4 feet deep.

Grounding electrode conductor shall be #4 AWG copper or greater.

Minimum 8 grounding electrode required (copper clad, aluminum clad, or steel).

B. MOUNTING:

Meter sockets, cabinets, trough and conduits shall be surface mounted.

All screws and bolts shall be minimum #12 x 1-1/2 corrosion resistant type screws. Nailing topole is not permissible.

Conduit ends shall be equipped with a proper bushing to protect conductors.

C. CONNECTIONS:

Customer shall apply a non-grit-type corrosion inhibitor to connections and terminate them bytorquing to manufacturers specifications located in the enclosure. Do not over-torque!

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TEMPORARY UNDERGROUND SERVICEINSTALLATION

A. GENERAL NOTES:

Pole length 10 minimum (including below-ground portion of pole)

Pole type specification: 6 x 6 pressure treated creosote, CCA, or penta


Grounding electrode conductor shall be #4 AWG copper or greater

Minimum 8 grounding electrode required (copper-clad, aluminum-clad, or steel).

B. MOUNTING: Meter sockets, cabinets, trough and conduits shall be surface mounted.

All screws and bolts shall be minimum #12 x 1-1/2 corrosion resistant. Nailing to pole is notpermissible.


C. CONNECTIONS:


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TYPICAL OVERHEAD SERVICE TO MOBILE HOME

A. GENERAL NOTES:


Pole length determined by service drop clearance requirements.

ClearanceRequirements

12.5 ft. - sidewalk only (restricted traffic)16.5 ft. - residential driveway only16.5 ft. - public driveways, alleys, and roads, construction areas

Pole specifications: 15 minimum circumference pressure treated creosote, CCA, or Penta6 x 6 square treated timber minimum. Shortest acceptable pole is 18 feet, set 4 feet deep.

Grounding electrode conductor shall be #4 AWG copper or greater.

Minimum 8 grounding electrode required (copper clad, aluminum clad, or steel).

B. MOUNTING:

Meter sockets, cabinets, trough, and conduits shall be surface mounted.



C. CONNECTIONS:


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TYPICAL UNDERGROUND INSTALLATIONSFOR MOBILE HOMES

A. GENERAL NOTES:


Customer must provide meter pedestals for the connection of service laterals and watt-hourmeters.

Meter pedestals to be installed in a manner where they will not be subject to vehicular traffic withlocations approved prior to installation by a qualified employee.

Meter pedestal will remain the property of the customer with Gulf Power Company having noresponsibility for maintenance or upkeep of the pedestal.

B. MOUNTING:

Meter sockets, cabinets, trough, and conduits shall be surface mounted.



C. CONNECTIONS:


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TYPICAL RESIDENTIAL OVERHEAD INSTALLATION

A. GENERAL NOTES:

Meter socket shall be furnished and installed by customer in accordance with Gulf Power and FloridaMeter Group requirements (See GENERAL REQUIREMENTS FOR SERVICES LESS THAN600 VOLTS, Section C, Meter Sockets, on page 12).

Meter socket shall be readily accessible and allow workspace as illustrated.

Placement of meter socket in alley ways or areas where meter is subject to damage shall require advanceapproval of a qualified employee.

B. MOUNTING:

Meter socket and conduit shall be surface mounted without brick or other exterior veneers encasingthe equipment.

Meter socket and conduit straps shall be fastened to building using lead anchors (brick or solidmasonry), toggle bolts (other masonry siding) or wood screws (studs, solid lumber). All screws andbolts shall be minimum #12 corrosion resistant. A minimum of four (4) fasteners shall be used tomount socket.

C. CONNECTIONS:


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TYPICAL WIRING OF METER SOCKET FORSINGLE-PHASE TWO-WIRE 120V SERVICE

A. GENERAL NOTES:

Meter socket shall be furnished and installed by customer in accordance with Gulf Power andFlorida Meter Group requirements (See GENERAL REQUIREMENTS FOR SERVICES LESSTHAN 600 VOLTS, Section C, Meter Sockets, on page 12).

Requirements regarding accessibility to equipment and unobstructed working space adjacent tometering equipment are specified under Service Locations on page 8.


120-volt 2-wire services are generally available for billboards, traffic control devices, and CATVamplifiers. Customer must have Gulf Power Company approval prior to use on other typeinstallations. Commercial use requiring demand meter is not available.

B. MOUNTING:

Meter sockets and conduit shall be surface mounted without brick or other exterior veneersencasing the equipment.

Meter socket and conduit straps shall be fastened to building using lead anchors (brick or solidmasonry), toggle bolts (other masonry siding) or wood screws (studs, solid lumber). All screwsand bolts shall be minimum #12 corrosion resistant. A minimum of four (4) fasteners shall beused to mount socket.

C. CONNECTIONS:


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TYPICAL WIRING OF METER SOCKET FORSINGLE-PHASE THREE-WIRE OVERHEAD SERVICE:

SELF-CONTAINED METER

A. GENERAL NOTES:


For 120/208-volt service, a fifth lug shall be installed by the customer at the 9:00-oclock positionin the meter socket.

For services greater than 200 amps but less than or equal to 400 amps, use Class 320 socket withmanual lever bypass as shown on page 35.



B. MOUNTING:

Meter socket and conduit shall be surface mounted without brick or other exterior veneersencasing the equipment.


C. CONNECTIONS:


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TYPICAL INSTALLATION OF OVERHEAD, SINGLE-PHASE SERVICE USING INSTRUMENT TRANSFORMERS

A. GENERAL NOTES:

Meter socket, instrument-transformer enclosure, and instrument transformers will be furnished byCompany and shall be installed by customer.

Conduit between instrument-transformer enclosure and meter socket shall be 1-1/4 rigid metal,intermediate metal, or PVC, furnished and installed by customer.

Metering control cable furnished and installed by Company.

Requirements regarding accessibility to equipment and unobstructed working space adjacent to meteringequipment are specified under Service Locations on page 8.


B. MOUNTING:

Enclosure, socket and conduits for service lateral and meter control cable shall be surfacemounted without brick or other exterior veneers encasing the equipment.

Enclosure, socket and conduit straps shall be fastened to building using lead anchors (brick orsolid masonry), toggle bolts (other masonry siding) or wood screws (studs, solid lumber). Allscrews and bolts shall be minimum #12 corrosion resistant. A minimum of four (4) fastenersshall be used to mount both enclosure and socket.

C. CONNECTIONS:


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TYPICAL INSTALLATION FOR SINGLE-PHASETHREE-WIRE UNDERGROUND SERVICE:


A. GENERAL NOTES:





B. MOUNTING:



C. CONNECTIONS:


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TYPICAL INSTALLATION OF UNDERGROUND, SINGLE-PHASE SERVICE USING INSTRUMENT TRANSFORMERS

A. GENERAL NOTES:

Meter socket, instrument-transformer enclosure, and instrument transformers will be furnished byCompany and shall be installed by customer.

Conduit between instrument-transformer enclosure and meter socket shall be 1-1/4 rigid metal,intermediate metal, or PVC, furnished and installed by customer.


Conduit riser for Companys service cable to instrument-transformer enclosure will be sized byCompany, and shall be furnished and installed by customer.



B. MOUNTING:

Enclosure, socket, and conduits for service lateral and meter control cable shall be surfacemounted without brick or other exterior veneers encasing the equipment.

Enclosure, socket and conduit straps shall be fastened to building using lead anchors (brick orsolid masonry), toggle bolts (other masonry siding) or wood screws (studs, solid lumber). Allscrews and bolts shall be minimum #12 corrosion resistant. A minimum of four (4) fastenersshall be used to mount both enclosure and socket.

C. CONNECTIONS:


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DUPLEX INSTALLATIONS OVERHEAD AND UNDERGROUND

A. GENERAL NOTES:

A two-gang meter socket or two single meter sockets may be used when the inspection authorityhaving jurisdiction allows for these types of meter socket applications.

Meter sockets shall be in accordance with Gulf Power and Florida Meter Group requirements(See GENERAL REQUIREMENTS FOR SERVICES LESS THAN 600 VOLTS, Section C,Meter Sockets, on page 12).

Requirements regarding accessibility to equipment, unobstructed working space, clearances,proper mounting, and conduit arrangement are specified under Service Locations on page 8.

Placement of meter socket in alley ways or areas where meter is subject to damage shall requireadvance approval of a qualified employee.

B. OVERHEAD SERVICE:

If customer provides a single riser, customer shall provide a wiring trough and a single service-lateral attachment point in trough. No other conductors, conduits, or wireways can be connectedto the line-side wiring trough.

Metering center and conduit straps shall be fastened to building using lead anchors (brick orsolid masonry), toggle bolts (other masonry siding) or wood screws (studs, solid lumber). Allscrews and bolts shall be minimum #12 x 1-1/2 corrosion resistant. A minimum of four (4)fasteners shall be used to mount metering center.

C. UNDERGROUND SERVICE:

Customer shall furnish and install wiring trough and meter sockets.

Customer provides single service lateral attachment point in trough.

No other conductors, conduits, or wireways can be connected to the line-side wiring trough.

D. MARKING:

Each socket position and the corresponding building unit served (suite, apartment, or office) shallbe accurately, clearly, and permanently labeled before meters are installed.

Letters and/or numbers shall be a minimum 1 height of contrasting color.

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UNDERGROUND SINGLE-PHASE SERVICE FORMULTI-FAMILY HOUSING

(with six or fewer units per building using gang meter center)

A. GENERAL NOTES:

A ganged meter socket may be used when the inspection authority having jurisdiction allows for this type of socket.

Meter sockets shall be in accordance with Gulf Power and Florida Meter Group requirements (SeeGENERAL REQUIREMENTS FOR SERVICES LESS THAN 600 VOLTS, Section C, MeterSockets, on page 12).

Requirements regarding accessibility to equipment, unobstructed working space, clearances, propermounting, and conduit arrangement are specified under Service Locations on page 8.

Placement of meter sockets in alley ways or areas where meter is subject to damage shall require advanceapproval of a qualified employee.

B. UNDERGROUND SERVICE:

Wiring Space and Line-side Connections: Line side studs shall be equipped with nut, flat washer, and pressure-maintaining (Belleville) spring

washer. Torquing requirements shall be clearly marked in the line-side compartment. Load-side conductors

shall be properly torqued by customer. Line-side conductors will be installed and torqued byCompany.

Ganged meter sockets and conduit straps shall be fastened to building using lead anchors (brick orsolid masonry), toggle bolts (other masonry siding) or wood screws (studs, solid lumber). All screwsand bolts shall be minimum #12 x 1-1/2 corrosion resistant. A minimum of four (4) fasteners shallbe used to mount metering center.

Minimum Conduit Requirements: Two Positions: (1) 3 conduit Three or Four Positions: (1) 3 conduit Five or Six Positions: (2) 3 conduit or (1) 4 conduit

C. OVERHEAD SERVICE:

It is unlikely that all-electric installations will utilize an overhead service entrance. Requirements for thisinstallation are not specified but will generally follow requirements on this page with appropriate changesfor overhead service. Consult a Company representative for details.

D. MARKING:

Each socket position and the corresponding building unit served (suite, apartment, or office) shall beaccurately, clearly, and permanently labeled before meters are installed.


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MULTI-FAMILY INSTALLATIONWITH MORE THAN SIX POSITIONS

A. GENERAL NOTES:

A meter center may be used when the inspection authority having jurisdiction requires the installation of a servicedisconnecting means adjacent to the meter. The customer furnishes the disconnect enclosure and socket enclosures.

Gulf Power Company will designate the location of the meter center.

Meter sockets shall be in accordance with Gulf Power and Florida Meter Group requirements (See GENERALREQUIREMENTS FOR SERVICES LESS THAN 600 VOLTS, Section C, Meter Sockets, on page 12).

Requirements regarding accessibility to equipment, unobstructed working space, clearances, proper mounting andconduit arrangement are specified under Service Locations on page 8.

Placement of meter socket in alley ways or areas where meter is subject to damage shall require advance approvalof a qualified employee.

B. UNDERGROUND SERVICE:

Wiring Space and Line-side Connections: Line-side studs shall be equipped with nut, flat washer, and pressure-maintaining (Belleville) spring washer.

All parts shall be plated to prevent corrosion. Customer-furnished connectors shall meet requirements of U.L.486 B.

Torquing requirements shall be clearly marked in the line side compartment. Load-side conductors shall beproperly torqued by customer. Line-side conductors will be installed and torqued by Company.

Metering center and conduit straps shall be fastened to building using lead anchors (brick or solid masonry),toggle bolts (other masonry siding) or wood screws (studs, solid lumber). All screws and bolts shall beminimum #12 x 1-1/2 corrosion resistant. A minimum of four (4) fasteners shall be used to mount meteringcenter.

Minimum Conduit Requirements: Two 3 conduits or one 4 conduit shall be supplied for each six positions or fraction thereof.

C. OVERHEAD SERVICE:

It is unlikely that all-electric installations will utilize an overhead service entrance. Requirements for thisinstallation are not specified but will generally follow requirements on this page with appropriate changes foroverhead service. Consult a Company representative for details.

D. MARKING:

Each socket position and the corresponding building unit served (suite, apartment, or office) shall be accurately,clearly, and permanently labeled before meters are installed.


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SINGLE-PHASE COMMERCIAL SERVICE400 AMPS AND BELOW:

SELF-CONTAINED METERS

A. GENERAL NOTES:


Note that all meter sockets used in commercial installations, including 200-amp (see p. 50) and320-amp sockets (see p. 51), shall have a manual lever bypass mechanism. The only exceptionshall be single sockets serving certain specified customer types; see Section C on Page 12 for alist of permitted exceptions.


Requirements regarding accessibility to equipment and unobstructed working space adjacentto metering equipment are specified under Service Locations on page 8.


B. MOUNTING:


Meter socket and conduit straps shall be fastened to building using lead anchors (brick or solidmasonry), toggle bolts (other masonry siding) or wood screws (studs, solid lumber). All screwsand bolts shall be minimum #12 x 1-1/2 corrosion resistant. A minimum of four (4) fastenersshall be used to mount socket. Only the pre-punched holes provided by the manufacturer shall beused to mount socket.

C. CONNECTIONS:


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SINGLE-PHASE COMMERCIAL SERVICEABOVE 400 AMPS:

INSTRUMENT TRANSFORMER METERS

A. GENERAL NOTES:

Meter socket, instrument transformer enclosure, and instrument transformers will be furnishedby Company and shall be installed by customer.

Customer shall install 1-1/4 rigid galvanized, intermediate metal, or schedule 40 PVC conduitfrom instrument-transformer meter sockets to instrument transformer enclosures. All conduitends shall be reamed to protect the meter control cable. All conduit ends shall be equipped witha proper bushing to protect conductors. If the conduit is metal, the conduit ends shall beequipped with a bonding bushing. If the conduit is plastic, the customer shall install a minimum#6 copper bonding jumper between the meter socket and the instrument transformer enclosure.


Requirements regarding accessibility to equipment, unobstructed working space, clearances,proper mounting, and conduit arrangement are specified under Service Locations on page 8.


B. MOUNTING:

Enclosure, socket, and conduits for service lateral and meter control cable shall be surfacemounted without brick or other exterior veneers encasing the equipment.

Enclosure, socket, and conduit straps shall be fastened to building using lead anchors (brick orsolid masonry), toggle bolts (other masonry siding) or wood screws (studs, solid lumber). Allscrews and bolts shall be minimum #12 x 1-1/2 corrosion resistant. A minimum of four (4)fasteners shall be used to mount both enclosure and socket.

If metering equipment is mounted on a backboard instead of a building, the backboard shallconsist of at least treated exterior-grade plywood supported on at least two 6 x 6 treatedwood posts, buried at least 30 inches deep for underground service, and 48 inches deep foroverhead service.

C. CONNECTIONS:


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THREE-PHASE COMMERCIAL SERVICE400 AMPS AND BELOW:


A. GENERAL NOTES:

When a self-contained socket is utilized for 277/480-volt installations, the customer shall install adisconnecting means immediately adjacent to the meter socket on the load side of the socket. Thedisconnecting means must have a current rating not less than the load current to be carried and musthave an interrupting rating at system voltage sufficient for the current that must be interrupted.

Meter socket shall be furnished and installed by customer in accordance with Gulf Power and FloridaMeter Group requirements (See GENERAL REQUIREMENTS FOR SERVICES LESS THAN 600VOLTS, Section C, Meter Sockets, on page 12).

Note that all self-contained meter sockets used in commercial installations, including gang meter sockets,and including 200-amp-or-below sockets (see page 55) and 320-amp sockets (see page 56), shall have amanual lever bypass mechanism.

See page 57 for wiring of stinger leg in meter sockets used in 3-phase 4-wire 120/240 volt applications.



B. MOUNTING:

Meter socket and conduit shall be surface mounted without brick or other exterior veneers encasingthe equipment.

Meter socket and conduit straps shall be fastened to building using lead anchors (brick or solidmasonry), toggle bolts (other masonry siding) or wood screws (studs, solid lumber). All screws andbolts shall be minimum #12 x 1-1/2 corrosion resistant. A minimum of four (4) fasteners shall beused to mount socket.

C. CONNECTIONS:


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THREE-PHASE COMMERCIAL SERVICEABOVE 400 AMPS:

INSTRUMENT TRANSFORMERS INSTALLED INPADMOUNT TRANSFORMER SERVING ONE CUSTOMER

A. GENERAL NOTES:

Instrument-transformer-rated meter socket furnished by Company and installed by customer. See pages17-18 for further detail.

Meter socket shall be mounted on a pedestal or outside wall of building. Meter socket shall not bemounted on the padmount transformer.

Customer shall install 1-1/4 rigid galvanized or schedule 40 PVC conduit from the meter socket tothe secondary side of the padmount transformer. Conduit ends shall be equipped with a proper bushingto protect conductors.

Current transformers on padmount transformer secondary bushings and meter control cable to befurnished and installed by Company.


Placement of meter socket in alley ways or area where meter is subject to damage shall require advanceapproval of a qualified employee.

B. MOUNTING:

If using a pedestal, meter socket and conduit straps shall be fastened to the pedestal using bolts. Boltsshall be minimum #12 corrosion resistant. A minimum of four (4) fasteners shall be used to mountsocket.

For wall mounting, meter socket and conduit shall be surface mounted without brick or otherexterior veneers encasing the equipment.

For wall mounting, meter socket and conduit straps shall be fastened to building using leadanchors (brick or solid masonry), toggle bolts (other masonry siding) or wood screws (studs,solid lumber). All screws and bolts shall be minimum #12 x 1-1/2 corrosion resistant. Aminimum of four (4) fasteners shall be used to mount socket.

C. CONNECTIONS:

All meter wiring connections shall be made by Company only.

Version: 4/8/2009 3:12:00 PM

60

TYPICAL THREE-PHASE PADMOUNT TRANSFORMERMETERING INSTALLATION SERVING MULTIPLE

CUSTOMERS FROM A COMMON SERVICE LATERAL

A. GENERAL NOTES:

Instrument-transformer-rated meter sockets, instrument transformer cabinets, and current transformerswill be furnished by Company and installed by customer. See pages 17-18 for further detail.

Customer shall install 1-1/4 rigid galvanized, intermediate metal, or schedule 40 PVC conduit frominstrument-transformer meter sockets to instrument transformer enclosures. All conduit ends shall bereamed to protect the meter control cable. All conduit ends shall be equipped with a proper bushing toprotect conductors. If the conduit is metal, the conduit ends shall be equipped with a bonding bushing.If the conduit is plastic, the customer shall install a minimum #6 copper bonding jumper between themeter socket and the instrument transformer enclosure.


Placement of meter socket in alley ways or area where meter is subject to damage shall require advance approvalof a qualified employee.

B. MOUNTING:

Meter sockets, cabinets, trough and conduits shall be surface mounted.

Meter socket, instrument transformer cabinet, and conduit straps shall be fastened to building using leadanchors (brick or solid masonry), toggle bolts (other masonry siding), or wood screws (studs, solidlumber). All screws and bolts shall be minimum #12 corrosion resistant. A minimum of four (4)fasteners shall be used to mount each socket or cabinet.

If metering equipment is mounted on a backboard instead of a building, the backboard shall consist of atleast treated exterior-grade plywood supported on at least two 6 x 6 treated wood posts, buried atleast 30 inches deep for underground service, and 48 inches deep for overhead service.

C. CONNECTIONS:

Customer shall apply a non-grit-type corrosion inhibitor to connections in self-contained meter socketsand torque to manufacturers specifications located in the enclosure. Do not over-torque!

All instrument-transformer metering connections will be made by Company.

D. MARKING:

Each socket position and the corresponding building unit served (suite, apartment or office) shall beaccurately, clearly, and permanently labeled before meters are installed.

Each meter socket position shall be labeled on both the inside and outside surfaces.

Letters and/or numbers shall be minimum 1 in height of contrasting color.

Version: 4/8/2009 3:12:00 PM

62

TYPICAL THREE-PHASE PADMOUNT TRANSFORMERMETERING INSTALLATION SERVING MULTIPLE

CUSTOMERS FROM A SINGLE PADMOUNT TRANSFORMER

A. GENERAL NOTES:

Instrument-transformer-rated meter sockets, instrument transformer cabinets, and current transformersfurnished by Company and installed by customer. See pages 17-18 for further detail.

Customer shall install 1-1/4 rigid galvanized, intermediate metal, or schedule 40 PVC conduit frominstrument-transformer meter sockets to instrument transformer enclosures. All conduit ends shall bereamed to protect the meter control cable. All conduit ends shall be equipped with a proper bushing toprotect conductors. If the conduit is metal, the conduit ends shall be equipped with a bonding bushing. Ifthe conduit is plastic, the customer shall install a minimum #6 copper bonding jumper between the metersocket and the instrument transformer enclosure.


Placement of meter socket in alley ways or area where meter is subject to damage shall require advance approvalof a qualified employee.

B. MOUNTING:

Meter sockets, cabinets, and conduits shall be surfaced mounted.

Meter so

Documents

MeteringHandbookComplete_040809